initial pass for a glusterfs cluster
fix Vagrantfile
tune  back to 2 nodes, 3 nodes would require replication factor of 3
remove configuration for third node
add configuration for latest GA release of GlusterFS
use GA of GlusterFS, disable NFS tools, disable keepalived, drop timeout for volume
Merge pull request #6 from python/gluster

add a 2 node replicated glusterfs cluster